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Hourly Forecast
Daylight Hours
06:13
Sunrise
18:12
Sunset
Moon
Waxing Gibbous
15:15
Moonrise
01:24
Moonset
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View stargazing scoreWeather in Nagasaki today, September 21, 2026
Sunshine leads the day in Nagasaki on September 21, 2026, with a patch of cloud building near 03:00. The broader outlook stays fair despite that temporary thickening. The opening hours look fair, as cloud stays near 31% around 03:00. Morning errands should face fewer weather interruptions.
The day peaks near 27°C and cools toward 22°C. Expect humidity between 53% and 79%, most humid near 03:00. Winds stay light, near 5.9 km/h by 18:00, so the day feels still more than breezy.
Expect a more open afternoon, with limited cloud around 22% by 12:00. Residual damp risk should be lower than earlier. Visibility stays near 16.1 km. Expect sunrise at 06:13, sunset at 18:12, and 11 hours 58 minutes of sunlight today overall.
Taken together, settled sunshine in Nagasaki on September 21, 2026 makes outdoor timing easier, with highs near 27°C.
Frequently asked questions about weather in Nagasaki
How warm does it get in Nagasaki?
The warmest month in Nagasaki is August, with average high temperatures of 30°C. The average temperature during this period is around 28°C.
How cold does it get in Nagasaki?
The coldest month in Nagasaki is January, with average low temperatures of 7°C. The average temperature during this period is around 8°C.
What is the wettest time of year in Nagasaki?
The wettest month in Nagasaki is June, with an average of 400mm of precipitation.
What is the driest time of year in Nagasaki?
The driest month in Nagasaki is January, with an average of 80mm of precipitation.
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